TY - JOUR
T1 - Polyurethane-poly(2-hydroxyethyl methacrylate) semi-IPN-nanooxide composites
AU - Bershtein, Vladimir A.
AU - Gun'Ko, Vladimir M.
AU - Karabanova, Lyudmila V.
AU - Sukhanova, Tatiana E.
AU - Yakushev, Pavel N.
AU - Egorova, Larisa M.
AU - Turova, Anna A.
AU - Zarko, Vladimir I.
AU - Pakhlov, Eugene M.
AU - Vylegzhanina, Milana E.
AU - Mikhalovsky, Sergey V.
PY - 2013/8/5
Y1 - 2013/8/5
N2 - Two sets of hybrid polyurethane-poly(2-hydroxyethyl methacrylate) semi-interpenetrating polymer network-nanooxide composites with 0.25 or 3 wt% nanosilica or nanoalumina functionalised with OH, NH2 or CHCH 2 groups were prepared. A combination of atomic force microscopy, infrared spectroscopy, thermally stimulated depolarisation current measurement, differential scanning calorimetry and creep rate spectroscopy analysis of the nanostructure and properties of the composites was performed. The pronounced dynamic heterogeneity and the strong impact of oxide additives, basically suppression of the dynamics and temperature-dependent increasing modulus of elasticity, were observed. The effects correlated with either interfacial interactions (for silica) or the nanostructure (for alumina). A low oxide content strongly affected the matrix due to the formation of an unusual cross-linked, via double covalent hybridisation of three components, structure of the nanocomposites.
AB - Two sets of hybrid polyurethane-poly(2-hydroxyethyl methacrylate) semi-interpenetrating polymer network-nanooxide composites with 0.25 or 3 wt% nanosilica or nanoalumina functionalised with OH, NH2 or CHCH 2 groups were prepared. A combination of atomic force microscopy, infrared spectroscopy, thermally stimulated depolarisation current measurement, differential scanning calorimetry and creep rate spectroscopy analysis of the nanostructure and properties of the composites was performed. The pronounced dynamic heterogeneity and the strong impact of oxide additives, basically suppression of the dynamics and temperature-dependent increasing modulus of elasticity, were observed. The effects correlated with either interfacial interactions (for silica) or the nanostructure (for alumina). A low oxide content strongly affected the matrix due to the formation of an unusual cross-linked, via double covalent hybridisation of three components, structure of the nanocomposites.
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U2 - 10.1039/c3ra40295a
DO - 10.1039/c3ra40295a
M3 - Article
AN - SCOPUS:84881441914
VL - 3
SP - 14560
EP - 14570
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 34
ER -